Solo Innova Instructions 1-800-782-9927 Version 01-18
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Fig 3.1
The smoke pipe connecting the boiler to the chimney flue must be black or stainless, have a minimum
thickness of 24 gauge, and rise a minimum of ¼” per foot of run toward the chimney
(Fig3.1).
Smoke
pipe sections must be attached to one another with a minimum of three sheet metal screws and sealed
with high-temp silicone. The smoke pipe should not contain more than two 90º elbows (45º elbows
are preferred over 90º elbows ).
MASONRY CHIMNEYS: Masonry chimneys must be lined, either with code-approved masonry or
pre-cast refractory tiles, stainless steel pipe, or poured in place liner. Do not use an unlined chimney
FACTORY BUILT CHIMNEYS: Factory built chimneys must be tested and listed for use with solid-
fuel burning appliances to the High Temperature (HT) Standard (2100 ˚F(1148 ˚C )), UL 103, for the
United States. Factory-Built chimneys must be installed as per the manufacturers instructions.
Strong winds blowing across the top of a chimney or a chimney which has a particularly strong natural
draft can cause the Solo Innova boiler to continue burning (heating) when the draft fan is off. This is
an unlikely scenario, as the blower on a Solo Innova, used with a thermal storage system, should
rarely be off while a fire is present. If however, an irregular or excessively high draft presents prob-
lems, the solution is the use of a barometric draft regulator or the use of a proper chimney cap that
helps in the prevention of down drafts.
Installation requirements for a barometric damper (draft regulator).
The diameter of the draft regulator must be equal or greater than that of the chimney connector
.
The draft regulator should be installed as close as possible to the boiler, on the chimney con-
nection or on chimney itself.
The draft regulator adjustment should be made with a vacuum gauge, if possible, with the
boiler operating at full output. If the start-up is made in warm weather, a readjustment may be
necessary in cold weather.
If, at the maximum adjustment (maximum opening of the shutter of the draft stabilizer), the
draft is always higher than -0.05” (1.25 mm) of water column, a second draft regulator may be
required.
Recommended draft regulator locations are shown in
Fig 3.1
(position 1 or 2). The optimal
position is position 2.
Boiler Installation & Start-up > Preparing the Chimney
Page 13
¼" per ft
0-4
'
18" Clearance from smoke
pipe to all combustibles
Min. 16" above
the base of the
chimney
1
2
Examples of Barometric Dampers
Fig 3.2
